Chromic oxide refractory material and preparation method thereof

Abstract

The invention discloses a chromic oxide refractory material which is prepared from aggregate, a substrate material and an adhesive. The aggregate is a sintered chromic oxide synthesized particle material with the particle size of 0-3mm; the substrate material comprises titanium-free zirconite micropowder and mixed powder with the particle size of less than 20 mu m; the chromic oxide content in the sintered chromic oxide synthesized particle material is greater than or equal to 85%; the zirconium silicate content in the titanium-free zirconite micropowder is greater than 99%; and the mixed powder comprises chromic oxide, zirconium oxide, silicon oxide or titanium oxide powder. The chromic oxide refractory material cannot be stripped and molten into the glass metal in the use process, and meanwhile, the chromic oxide has very high glass corrosion resistance, and the corrosion resistance of the product is further enhanced.

Description

technical field

[0001] The invention relates to the field of synthesis of refractory materials, in particular to a chromium oxide refractory material and a preparation method thereof. Background technique

[0002] The equipment for glass production is a glass furnace. The main material of the existing glass melting furnace is refractory material. The refractory material is subject to high temperature, rapid temperature change, physical and chemical erosion and mechanical erosion of flame, powder and glass liquid for a long time in the furnace. Therefore, with the passage of time, it will be gradually peeled off and melted into the molten glass, and cause defects such as bubbles and refractory stones to the molten glass, which will make the drawing operation difficult in severe cases. When the refractory material is eroded to a certain extent, the kiln will be forced to stop production for cold repair, which will affect the production efficiency, increase the production cost ...

Images